Separation of photoabsorption and Compton scattering contributions to He single and double ionization
Journal Article
·
· Physical Review Letters
- Institut fuer Kernphysik, Universitaet Frankfurt, D60486 Frankfurt am Main (Germany)
We have experimentally separated the contributions of photoabsorption and Compton scattering to He single and double ionization for high-energy photon impact by measuring the full momentum vector of the recoiling He{sup 1+,2+} ions. For recoil ions following photoabsorption large momenta and a distinct dipole emission pattern are observed. The ions produced by Compton scattering show small momenta. For the ratio of double to single ionization we find (1.22{plus_minus}0.06)% at 8.8{sub {minus}1.65}{sup +1.5} keV for Compton scattering and (1.72{plus_minus}0.12)% at 7.0{sub {minus}1.6}{sup +2.1} keV for photoabsorption. We compare our data with recent theories.
- OSTI ID:
- 69281
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 74; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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